CN101850606B

CN101850606B - Pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank

Info

Publication number: CN101850606B
Application number: CN2010101542822A
Authority: CN
Inventors: 缪高峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-20
Filing date: 2010-04-20
Publication date: 2012-07-18
Anticipated expiration: 2030-04-20
Also published as: CN101850606A

Abstract

The invention discloses a pitch change mechanism of a full-automatic bottle blowing machine annular conveying bottle blank. A circular orbit on a rack is inserted with the sliding runner assembly of the bottle blank, and a blowing area is provided with a bottle blank pitch change mechanism which comprises a longitudinal sliding guide rail seat installed on the rack, the longitudinal sliding guide rail seat is provided with a longitudinal sliding guide rail which is provided with a longitudinal sliding plate in slide fit, the longitudinal sliding plate is provided with a lateral sliding guide rail which is provided with a lateral sliding plate in slide fit, and the lateral sliding plate is driven by a lateral moving cylinder and is provided with a switching plate connecting block A and a switching plate connecting block B; the switching plate connecting blocks A and B are respectively provided with a switching plate A and a switching plate B; the switching plates A and B are respectively provided with a semicircle locating slot which is in contact with the sliding runner assembly; the driving of the longitudinal sliding plate comprises: a servo motor drives a drive sprocket, a chain and a driven sprocket; the longitudinal sliding plate is connected to the chain; the switching plate connecting block A is provided with a compression spring; the right side thereof is in contact with a spring seat; the rack is provided with a left spacing block to be in contact with the switching plate connecting block A; the switching plate connecting block B is provided with a pitch change guide rail seat in which a pitch change guide rail is arranged, and the pitch change guide rail is connected with the switching plate connecting block A; the front end of the pitch change guide rail is provided with a locating block; and the middle of the switching plate connecting block B is provided with a travel stop dog which is in contact with the locating block.

Description

Pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank

Technical field

The present invention relates to blower for plastic bottle, particularly relate to pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank, belong to the plastics machinery field.

Background technology

Use the equipment that hollow plastic container is produced in the notes stretch blow, carry the structure of plastic bottle preform comparatively simple, base zone, bottle embryo heating region, stretch blow zone and container molding taking-up zone can be set on the annular delivery track with ring rotation; The bottle embryo can be driven by chain in annular is carried, and perhaps adopts slide rail to promote, and chain drives conveying mechanism owing to be out of shape by temperatures involved in heating process; So most slide rails that adopt promote, and in order to reduce the machine volume, shorten the stroke of heating region; Cut down the consumption of energy; People have designed the various separating devices that the spacing of bottle embryo is changed, heating region make bottle embryo arrange close, spacing is little, makes bottle embryo spacing become a big requirement that is fit to the stretch blow mould in the stretch blow zone; Particularly many containers of mould processing go out two, one as one and go out the fourth class.Such separation scheme such as Chinese patent CN2866112Y; Name is called " fully-automatic bottle-blowing machine cellular-type transmitting device "; In two demarcation strips elongated slot to be set respectively; Elongated slot cooperates with pulley, and two demarcation strips are connected by translot, pull bar, and two demarcation strips are driven by forward and backward mobile cylinder and left and right mobile cylinder.Forward and backward mobile cylinder promotes all pulleys and in slideway, slides when driving two demarcation strips, the forward and backward shortcoming that is driven by cylinder that moves of the technical scheme of this patent has: the one, promote poor stability, and speed is slow; Efficient is low; Particularly two demarcation strips are flexibly connected by the pull bar that the centre is provided with translot, be provided with in the translot to be slidingly matched, and the complex structure of the pulley composition that is fixedly connected with two demarcation strips respectively of central shaft; Requirement on machining accuracy is high, defectives such as assembling, maintenance trouble.

Summary of the invention

The objective of the invention is in order to overcome the shortcoming of prior art, it is stable, accurate to provide a kind of displacement to move, and speed is fast, and efficient is high, and full annular track volume is little, saves the pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank of energy consumption.

The technical scheme of pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank of the present invention is: comprise rack-mounted circular orbit, be equipped with the slip wheel set assembly of inserting the bottle embryo in the circular orbit, in circular orbit, with the corresponding stretch blow of Stretch and Blow Mechanism zone a bottle embryo pitch-changing mechanism is set; It is characterized in that described bottle embryo pitch-changing mechanism comprises rack-mounted longitudinal sliding motion track base, the longitudinal sliding motion guide rail is installed on the longitudinal sliding motion track base, the longitudinal sliding motion plate that is slidingly matched is arranged on the longitudinal sliding motion guide rail; On the longitudinal sliding motion plate lateral slide rail is installed, the horizontal sliding panel that is slidingly matched is arranged on the lateral slide rail, laterally sliding panel drives by laterally moving cylinder; Laterally be provided with on the sliding panel that first is dialled the plate contiguous block and second is dialled the plate contiguous block, first is dialled and first is installed on the plate contiguous block is dialled plate, and second is dialled on the plate contiguous block installation second and dialled plate; First is dialled plate and second and is dialled plate and be shaped on semicircle locating slot separately, and semicircle locating slot contacts with the slip wheel set assembly of inserting the bottle embryo, and the drive of longitudinal sliding motion plate comprises servomotor; Servomotor drives drive sprocket, chain and driven sprocket, and the longitudinal sliding motion plate is connected on the chain, presses the parameter that servomotor is set; And then chain moves back and forth; Dial installation compression spring in the plate contiguous block in first, the right of compression spring contacts with spring base, and spring base is fixed on the horizontal sliding panel; The left limit piece is installed on the frame under the circular orbit; The left limit piece is dialled the plate contiguous block with first and is contacted, and said second is dialled the displacement track base is installed on the plate contiguous block, and the displacement guide rail is set in the displacement track base; One end and the first of displacement guide rail dialled the plate contiguous block and linked to each other; Displacement guide rail front end installing and locating piece, second are installed stroke dog in the middle of dialling the plate contiguous block, and stroke dog contacts with locating piece.

The invention discloses a kind of pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank; Both promoted the slip wheel set assembly of all the slotting bottle embryos in the circular orbit by a servomotor; Make simultaneously the slip wheel set assembly of inserting the bottle embryo at the regional displacement of stretch blow again; Servomotor drives drive sprocket, chain (in actual product, can use belt or synchronous band and transmission mechanisms such as belt pulley or synchronous pulley) and driven sprocket and drives the longitudinal sliding motion plate again; Through the moving whole bottle of longitudinal sliding motion strip embryo pitch-changing mechanism and all slip wheel set assemblies; And can left stop optoelectronic switch be installed on frame and right stop optoelectronic switch grants asylum; Servomotor has been walked stroke disappeared, and combined laterally to move horizontal sliding panel that cylinder (perhaps laterally servomotor) drives etc. and make first, second dial plate to insert or withdraw from and need between the slip of the displacement wheel set assembly, reach the displacement purpose to zero.Make machine volume little, make each wheel set assembly bottle embryo spacing when heating region of only sliding tight, save energy consumption, when the stretch blow zone, make many bottle embryo spacings become big, be fit to the mould corresponding requirements of many plastic bottles of time processing, enhance productivity.Adopt servomotor, sprocket wheel and chain or belt or synchronously band etc. drive slip wheel set assembly and the pitch-changing mechanism on the full annular tracks, good operating stability, the displacement position be transported to mould each only slide that wheel set assembly is accurate, speed is fast, efficient is high.Particularly dial the compression spring is installed in the plate contiguous block, promote to make first, second dial plate contiguous block displacement by the compression spring in first, simple in structure, manufacturing, easy for installation.The left limit piece is installed on the frame under the circular orbit; One (before the displacement) that has had the left limit piece that first is dialled the plate contiguous block is spacing, and second is dialled the displacement track base is installed on the plate contiguous block simultaneously, and the displacement guide rail is set in the displacement track base; The displacement guide rail is dialled the plate contiguous block with first and is linked to each other; Displacement guide rail front end installing and locating piece, second are installed stroke dog in the middle of dialling the plate contiguous block, and stroke dog contacts with locating piece.Stroke dog and locating piece have been arranged, can prevent that second from dialling the plate contiguous block and skidding off the displacement guide rail.

Pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank of the present invention is dialled plate contiguous block and second in first and is dialled the right limit piece is installed between the plate contiguous block.The right limit piece make first dial plate contiguous block and second to dial plate contiguous block spacing spacing, the damage of avoiding colliding.Said first is dialled in the plate contiguous block through hole is set; Through hole front end mounting spring baffle plate; The spring stop center is provided with the central spindle of the spring locating hole, and central spindle of the spring passes locating hole and connects spring base, and the compression spring is positioned at outside the central spindle of the spring; Spring is spacing with elongation left side spring stop by compression, and the right spring base is spacing.The compression spring is installed in first and dials in the through hole of plate contiguous block, and the central spindle of the spring guiding is arranged, and one (left side) have spring stop, and other end (the right) has spring base spacing.Described circular orbit contacts with the inner surface up and down of slip wheel set assembly.Both are slidingly matched by the contact of upper and lower surface and operate steadily.The boundary lubrication thrust washer is equipped with in slip wheel set assembly upper and lower surfaces and circular orbit contact position, and lubricated thrust washer has been arranged, and coefficient of friction is little, and running is light, helps servomotor and drives.

Description of drawings

Fig. 1 is a fully-automatic bottle-blowing machine circular orbit sketch map of the present invention;

Fig. 2 is the pitch-changing mechanism structural representation;

Fig. 3 dials in second displacement position-limit mechanism sketch map is installed on the another side of plate contiguous block;

Fig. 4 is the schematic top plan view of Fig. 2;

Fig. 5 is the A-A direction schematic cross-section of Fig. 2.

The specific embodiment

The present invention relates to a kind of pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank,, comprise rack-mounted circular orbit 24 like Fig. 1-shown in Figure 5; Be equipped with the slip wheel set assembly 13 of inserting the bottle embryo in the circular orbit, in circular orbit, a bottle embryo pitch-changing mechanism be set, it is characterized in that described bottle embryo pitch-changing mechanism comprises the longitudinal sliding motion track base 18 that is installed on the frame 35 with the corresponding stretch blow of Stretch and Blow Mechanism zone 34; Longitudinal sliding motion guide rail 15 is installed on the longitudinal sliding motion track base 18, the longitudinal sliding motion plate 16 that is slidingly matched is arranged on the longitudinal sliding motion guide rail 15, lateral slide rail 21 is installed on the longitudinal sliding motion plate 16; The horizontal sliding panel 20 that is slidingly matched is arranged on the lateral slide rail 21, and laterally sliding panel 20 drives by laterally moving cylinder 22, first laterally is set on the sliding panel 20 dials plate contiguous block 4 and dial plate contiguous block 12 with second; First is dialled on the plate contiguous block 4 and first to be installed to be dialled plate 17, and second is dialled and second is installed on the plate contiguous block 12 is dialled plate 19, and first is dialled plate 17 and dialled plate 19 with second and be shaped on semicircle locating slot 25 separately; Semicircle locating slot 25 contacts with the slip wheel set assembly 13 of inserting the bottle embryo, and the drive of longitudinal sliding motion plate 16 comprises servomotor 28, and servomotor 28 drives drive sprocket 29, chain 30 and driven sprocket 31; Longitudinal sliding motion plate 16 is connected on the chain 30; Press the parameter that servomotor is set, and then chain moves back and forth, and dials in first compression spring 3 is installed in the plate contiguous block 4; The right of compression spring 3 contacts with spring base 6; Spring base 6 is fixed on the horizontal sliding panel 20, and left limit piece 1 is installed on the frame under the circular orbit, and left limit piece 1 is dialled plate contiguous block 4 with first and contacted; Said second is dialled displacement track base 9 is installed on the plate contiguous block 12; Displacement guide rail 8 is set in the displacement track base 9, and an end and the first of displacement guide rail 8 dialled plate contiguous block 4 and linked to each other, displacement guide rail 8 front end installing and locating pieces 11; Second is installed stroke dog 10 in the middle of dialling plate contiguous block 12, and stroke dog 10 contacts with locating piece 11.Both promoted the slip wheel set assembly 13 of all the slotting bottle embryos in the circular orbit 24 by a servomotor 28; Make simultaneously the slip wheel set assembly 13 of inserting the bottle embryo at regional 34 displacements of stretch blow again; Servomotor 28 drives drive sprocket 29, chain 30 (in actual product, can use belt or synchronous band and transmission mechanisms such as belt pulley or synchronous pulley) and driven sprocket 31 and drives longitudinal sliding motion plate 16 again; Drive whole bottle embryo pitch-changing mechanism and all slip wheel set assemblies 13 through longitudinal sliding motion plate 16; And left stop optoelectronic switch 14 can be installed on frame grant asylum with right stop optoelectronic switch 23; Servomotor 28 has been walked stroke to disappear to zero; And combine laterally to move horizontal sliding panel 20 that cylinder 22 (perhaps laterally servomotor) drives etc. and make first,

second dial plate

17,19 to insert or withdraw from and need between the slip of the displacement wheel set assembly 13, reach the displacement purpose.Make machine volume little, make each wheel set assembly 13 bottle embryo spacing when heating region of only sliding tight, save energy consumption, made many bottle embryo spacings become big at 34 o'clock, be fit to the mould corresponding requirements of many plastic bottles of time processing, enhance productivity in the stretch blow zone.Adopt servomotor 28, sprocket wheel 29 and chain 30 or belt or be with synchronously etc. drives slip wheel set assembly 13 and the pitch-changing mechanism on the full annular track 24; Good operating stability, displacement position be transported to mould each only slide wheel set assembly 13 accurately, speed is fast, efficient is high.Particularly dial compression spring 3 is installed in the plate contiguous block 4, promote to make first, second dial plate

contiguous block

4,12 displacements by compression spring 3 in first, simple in structure, manufacturing, easy for installation.Left limit piece 1 is installed on the frame under the circular orbit 24; There had 1 pair of first of left limit piece to dial (before the displacement) of plate contiguous block 4 to be spacing, and second is dialled displacement track base 9 is installed on the plate contiguous block 12 simultaneously, and displacement guide rail 8 is set in the displacement track base 9; Displacement guide rail 8 is dialled plate contiguous block 4 with first and is linked to each other; Displacement guide rail 8 front end installing and locating pieces 11, second are installed stroke dog 10 in the middle of dialling plate contiguous block 12, and stroke dog 10 contacts with locating piece 11.Stroke dog 10 and locating piece 11 have been arranged, can prevent that second from dialling plate contiguous block 12 and skidding off displacement guide rail 8.Dialling plate contiguous block 4 and second in first dials right limit piece 7 is installed between the plate contiguous block 12.Right limit piece 7 make first dial plate contiguous block 4 and second to dial plate contiguous block 12 spacings spacing, the damage of avoiding colliding.Said first is dialled in the plate contiguous block 4 through hole is set; Through hole front end mounting spring baffle plate 2; Spring stop 2 centers are provided with the central spindle of the spring locating hole, and central spindle of the spring 5 passes locating hole and connects spring base 6, and compression spring 3 is positioned at outside the central spindle of the spring 5; Spring is spacing with elongation left side spring stop 2 by compression, and the right spring base 6 is spacing.Compression spring 3 is installed in first and dials in the through hole of plate contiguous block 4, and central spindle of the spring 5 guiding are arranged, and one (left side) have spring stop 2, and other end (the right) has spring base 6 spacing.Described circular orbit 24 contacts with the inner surface up and down of slip wheel set assembly 13.Both are slidingly matched by the contact of upper and lower surface and operate steadily.Boundary lubrication thrust washer 27 is equipped with in slip wheel set assembly 13 upper and lower surfaces and circular orbit 24 contact positions, and lubricated thrust washer 27 has been arranged, and coefficient of friction is little, and running is light, helps servomotor and drives.

The concrete course of work is following: circular orbit 24 is installed on the frame 35 of fully-automatic bottle-blowing machine; One one wheel set assembly 13 that independently slides is set in the circular orbit 24; Insert the bottle embryo on the bottle blank seat 26 of slip wheel set assembly 13; Owing on circular orbit 24, need cold bottle embryo be processed into bottle (container), so can be divided into several zones to circular orbit 24, for example bottle embryo material loading zone 36, heating region 37, stretch blow zone 34 and bottle outlet zone 38.In order to make machine volume little, the heat utilization efficiency of heating region 37 is high, saves power consumption; Therefore at tracks such as bottle embryo material loading zone 36, heating regions 37 slip wheel set assembly 13 is arranged closely, it is many that the bottle embryo holds, in order to improve output; 2 of Stretch and Blow Mechanism 34 1 less important processing or 3 or 4 plastic bottles; If plastic bottle of time processing only needs to send into the stretch blow mould to a bottle embryo and gets final product, 2 or 2 above plastic bottles of time processing but need be arranged in the spacing of each bottle embryo with the die cavity of mould and equate; Otherwise can't stretch blow, so relate to pitch-changing mechanism.Directly contacted with slip wheel set assembly 13 (concrete structure of slip wheel set assembly is a prior art) in the pitch-changing mechanism is the semicircle locating slot 25 of group plate; Dialling plate branch first dials plate 17 and dials plate 19 with second; Dial plate when first, second and close assembly one time-out; The spacing of slip wheel set assembly 13 is consistent in the spacing of two semicircle locating slots 25 and the heating region 37; After dialling between plate 17, the 19 anterior semicircle locating slots insertion slip wheel set assemblies 13, block the slip wheel set assembly to first, second, by pitch-changing mechanism first, second is dialled the spacing that plate separately becomes each die cavity in the mould again by semicircle locating slot 25; Send into the bottle embryo in the mould, at the same time the plastic bottle and the slip wheel set assembly of moulding in the mould are released together.Suppose to start the front position; The slip wheel set assembly is parked in circular orbit not to be had in the displacement position, laterally moves cylinder 22 (perhaps using servomotor) and drives first on the horizontal sliding panel 20 and dial plate contiguous block 4 and dial plate contiguous block 12 with second, dials first on the plate contiguous block 4 and dials plate 17 and be installed in second and dial second on the plate contiguous block 12 and dial plate 19 and insert together between the slip wheel set assembly 13 being installed in first; Semicircle locating slot 25 by each group plate blocks slip wheel set assembly 13; First is dialled in the plate contiguous block 4 through hole is set, and size is with compressing spring movingly, front end mounting spring baffle plate 2; The baffle plate center is provided with the central spindle of the spring locating hole; Size with central spindle of the spring 5 movingly, central spindle of the spring connects spring base 6 and is fixed on the horizontal sliding panel 20, first is dialled and compression spring 3 is housed in the plate contiguous block 4 is fixed on outside the central spindle of the spring 5; Compression spring 3 compressed states; Spring born work arbor 5 stretches out outside the spring stop 2, and it is spacing that 1 pair of first of left limit piece is dialled plate contiguous block 4 left sides, and startup servo longitudinal motor 28 advances to stretch blow zone 34 at longitudinal sliding motion track base 18 location lower edge longitudinal sliding motion guide rail 15 through chain 30 drive longitudinal sliding motion plates 16 and drives whole pitch-changing mechanism; It is spacing that first is dialled plate contiguous block 4 disengaging left limit pieces 1; First dial in the plate contiguous block 4 compression springs 3 the central spindle of the spring guiding down elongation promote first and dial plate contiguous block 4 and dial plate 17 with the top first, displacement guide rail 8 moves stroke limit when stroke dog 10 and displacement locating piece 11 are collided by setting stroke.First, second is dialled the semicircle locating slot 25 of plate and is blocked slip wheel set assembly 13 and moved with the longitudinal sliding motion plate 16 that servomotor 28 drives by the displacement continued; The bottle germ band is gone in the mould always; Also the moulding plastics bottle in the mould is released; The whole slip wheel set assemblies 13 (like Fig. 1, Fig. 2 and shown in Figure 4) that promoted simultaneously in the circular orbit 24 move right; Then laterally moving cylinder 22 (perhaps servomotor) drives horizontal sliding panel 20 and first, second is dialled plate

contiguous block

4,12 and first,

second dials plate

17,19 and withdraw from by clamping 39 matched moulds; Accomplish the moulding of stretch blow bottle by Stretch and Blow Mechanism 34, and said pitch-changing mechanism is brought back to the startup front position, begin the continuous periodic duty of next program by servomotor.

Claims

1. pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank comprises rack-mounted circular orbit (24), is equipped with the slip wheel set assembly (13) of inserting the bottle embryo in the circular orbit; In circular orbit, with the corresponding stretch blow zone of Stretch and Blow Mechanism (34) a bottle embryo pitch-changing mechanism is set, it is characterized in that described bottle embryo pitch-changing mechanism comprises the longitudinal sliding motion track base (18) that is installed on the frame (35), longitudinal sliding motion track base (18) is gone up longitudinal sliding motion guide rail (15) is installed; The longitudinal sliding motion plate (16) that is slidingly matched is arranged on the longitudinal sliding motion guide rail (15), and longitudinal sliding motion plate (16) is gone up lateral slide rail (21) is installed, and the horizontal sliding panel (20) that is slidingly matched is arranged on the lateral slide rail (21); Laterally sliding panel (20) drives by laterally moving cylinder (22), is provided with on the sliding panel (20) laterally that first is dialled plate contiguous block (4) and second is dialled plate contiguous block (12), and first is dialled plate contiguous block (4) and gone up the installation first and dial plate (17); Second is dialled plate contiguous block (12) and second go up to be installed to be dialled plate (19), and first is dialled plate (17) and dialled plate (19) with second and be shaped on semicircle locating slot (25) separately, and semicircle locating slot (25) contacts with the slip wheel set assembly (13) of slotting bottle embryo; Longitudinal sliding motion plate (16) is driven by servomotor (28); Servomotor (28) drives drive sprocket (29), chain (30) and driven sprocket (31), and longitudinal sliding motion plate (16) is connected on the chain (30), presses the parameter that servomotor is set; And then chain moves back and forth; Dial installation compression spring (3) in the plate contiguous block (4) in first, the right of compression spring (3) contacts with spring base (6), and spring base (6) is fixed on the horizontal sliding panel (20); Left limit piece (1) is installed on the frame under the circular orbit; Left limit piece (1) is dialled plate contiguous block (4) with first and is contacted, and said second is dialled plate contiguous block (12) and gone up installation displacement track base (9), and displacement guide rail (8) is set in the displacement track base (9); One end of displacement guide rail (8) is dialled plate contiguous block (4) with first and is linked to each other; Displacement guide rail (8) front end installing and locating piece (11), second are installed stroke dog (10) in the middle of dialling plate contiguous block (12), and stroke dog (10) contacts with locating piece (11).

2. pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank as claimed in claim 1 is characterized in that first is dialled plate contiguous block (4) and second is dialled installation right limit piece (7) between the plate contiguous block (12).

3. pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank as claimed in claim 1; It is characterized in that said first is dialled in the plate contiguous block (4) is provided with through hole, through hole front end mounting spring baffle plate (2), and the spring stop center is provided with the central spindle of the spring locating hole; Central spindle of the spring (5) passes locating hole and connects spring base (6); Compression spring (3) is positioned at outside the central spindle of the spring (5), and the compression of spring and the elongation left side receive spring stop (2) spacing, and the right receives spring base (6) spacing.

4. pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank as claimed in claim 1 is characterized in that being equipped with in the described circular orbit (24) the slip wheel set assembly (13) of inserting the bottle embryo.

5. pitch change mechanism of full-automatic bottle blowing machine annular conveying bottle blank as claimed in claim 4 is characterized in that boundary lubrication thrust washer (27) is equipped with in the contact position of described slip wheel set assembly (13) and circular orbit (24).